To sing while listening. Singening is when you are listening to a song but mostly just singing over it. There is an act of listening to the orginal song but not at the expense of said singing and with the liberty to drown out the whole recording.This word also applies when all you know is the chorus and you let the song play in peace till that point following which you come in voce forte until the bridge. Singening is often done in the shower, the car and sometimes in empty elevators.